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PPAP: Perspective Projection Augment Platform with Pan–Tilt Actuation for Improved Spatial Perception

Department of Computer Science, Yonsei University, Yonsei-ro 50, Seodaemun-gu, Seoul 03722, Korea
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Author to whom correspondence should be addressed.
Sensors 2019, 19(12), 2652; https://doi.org/10.3390/s19122652
Received: 13 May 2019 / Revised: 4 June 2019 / Accepted: 7 June 2019 / Published: 12 June 2019
(This article belongs to the Section Physical Sensors)
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Abstract

In this paper, we propose PPAP, an augmented reality platform with an actuated projector for dynamic user-perspective projection. In PPAP, a stationary camera is used jointly with a pan–tilt motorized projector-camera unit. With the servo control of the steerable pan–tilt system, the system is able to continuously orient itself to match the user’s view center of the projection-mapped surface. This provides users with greatly widened viewing angles in the augmented scene, when compared to the stationary projection. Through user studies, in which users judged the size and distance of a projected virtual object, we verified that the perspective projection with the actuated projector helps users better understand the spatial relationship of the virtual object in the augmented scene in terms of depth perception. View Full-Text
Keywords: projection mapping; spatial augmented reality; virtual depth perception; human–computer interaction projection mapping; spatial augmented reality; virtual depth perception; human–computer interaction
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Byun, J.; Han, T.-D. PPAP: Perspective Projection Augment Platform with Pan–Tilt Actuation for Improved Spatial Perception. Sensors 2019, 19, 2652.

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